SpaceX Isn't Coming to Compete With Your Mobile Carrier - For Now, At Least

September 2025

Telecoms & Connectivity

Ardit Ballhysa

Senior Research Analyst

SpaceX’s recent acquisition of EchoStar’s AWS-4 and H-block spectrum for $17 billion marks one of the most consequential developments in the US telecom sector this year. The deal transfers mid-band spectrum, initially intended for terrestrial mobile deployment, into the hands of a satellite operator that has aggressively advanced direct-to-device (D2D) satellite services.

Combined with SpaceX’s ongoing deployment of second-generation Starlink satellites, and its earlier Federal Communications Commission (FCC) authorisations for supplemental coverage from space in partnership with T-Mobile, this transaction represents more than just opportunistic spectrum buying. It could potentially be a deliberate step toward redefining the competitive landscape of US mobile connectivity.

The question is whether SpaceX has the capacity, both technically and commercially, to become a de facto fourth national mobile operator alongside AT&T, Verizon, and T-Mobile. In short, the answer is no – at least for now.

Source: SpaceX

From a regulatory perspective, SpaceX is operating in increasingly favourable conditions. The FCC had been scrutinising EchoStar for failing to make efficient use of the AWS-4 spectrum, with SpaceX itself filing complaints about spectrum ‘warehousing’. By acquiring the licences, SpaceX has not only neutralised a potential competitor but also shifted regulatory momentum in its favour. The FCC closed its investigation into EchoStar’s spectrum performance obligations following the sale; effectively validating SpaceX’s right to leverage these assets for D2D satellite services. Furthermore, the FCC’s evolving ‘supplemental coverage from space’ framework demonstrates a willingness to blur the traditional boundaries between terrestrial and non-terrestrial networks. For SpaceX, this creates a policy environment in which spectrum assets originally allocated for ground-based 5G can be repurposed to advance satellite-based alternatives.

Technically, this move gives SpaceX an asset that strengthens its direct-to-cell roadmap. The AWS-4 and H-block spectrum, centred around the 2 GHz band, is well-suited for hybrid mobile-satellite use. SpaceX has already launched over 600 Starlink satellites capable of supporting D2D links, with the next generation of satellites scheduled for deployment in 2026 and 2027. The combination of exclusive spectrum rights and an expanding constellation positions SpaceX to address one of the largest constraints on D2D systems: predictable, interference-free access to frequencies that can connect with mass-market handsets.

Yet, despite these favourable developments, several structural challenges prevent SpaceX from replicating the role of a terrestrial mobile operator in the near-term. The first and most substantial issue is propagation and penetration. Satellite signals, even at 2 GHz, weaken significantly when passing through walls, windows, and urban environments. While terrestrial operators mitigate these issues with dense deployments of mid-band and low-band sites, indoor small cells, and Distributed Antenna Systems, satellites cannot replicate this level of mitigation from orbit. Consequently, D2D services are best-positioned as a coverage solution for outdoor, rural, and underserved areas, rather than a full substitute for urban mobile coverage.

A second constraint lies in spectral efficiency and capacity. Terrestrial 5G networks operating in mid-band spectrum can achieve far higher bits-per-hertz efficiency than non-terrestrial D2D systems. Because Starlink satellites are positioned hundreds of kilometres above Earth, their signals lose strength over long distances, and each satellite must cover a broad area with its beams. This means the number of users a single satellite can support at the same time is limited. While newer Starlink satellites are improving, with better beamforming and stronger power, the amount of bandwidth available to each user will still fall short of that which dense terrestrial 5G networks can deliver through small cells. As a result, there is a natural cap on how much of the consumer market SpaceX can realistically serve, especially in places where data demand is high.

The economics of satellite capacity further reinforce these constraints. While SpaceX has driven launch costs down through reusable rockets, maintaining a constellation of thousands of satellites remains capital-intensive. Layering on a $17 billion spectrum purchase, plus ongoing launch and maintenance costs, means that SpaceX will need to monetise these assets aggressively. The challenge is that US consumers are accustomed to paying terrestrial rates for mobile services, which benefit from decades of infrastructure ROI. 

Device support is another hurdle. Elon Musk himself has acknowledged that smartphones compatible with AWS-4 and H-block spectrum for D2D will not be widely available for at least two years. This lag in compatible handset delays the potential for large-scale adoption. Without major chipset vendors and OEMs prioritising support for these bands, SpaceX’s addressable market remains constrained, particularly in the premium smartphone segment where 5G adoption is already high.

From a competitive standpoint, incumbent operators are unlikely to concede ground. Verizon, AT&T, and T-Mobile hold extensive low-, mid-, and high-band spectrum portfolios and continue to densify their 5G networks with fibre-backed small cells. They are also exploring their own non-terrestrial partnerships and supplemental coverage models; ensuring that satellite connectivity does not become an uncontested differentiator. 

As such, SpaceX will not become the fourth US mobile operator – at least not anytime soon. Instead, the more probable trajectory is that SpaceX evolves into a hybrid connectivity provider, offering supplemental coverage in rural areas, redundancy in disaster recovery, and bundled services that integrate satellite with existing mobile and broadband offerings. This model does not displace incumbents, but, rather, adds competitive pressure and expands service reach, particularly in geographies where terrestrial networks remain uneconomical.

For now, the acquisition of EchoStar’s spectrum is best understood as a long-term strategic positioning play. It signals SpaceX’s intent to insert itself deeper into the US mobile value chain, but the technical and commercial barriers prevent direct competition with terrestrial operators.

Ardit works within the Telecoms & Connectivity team; providing insights and strategic recommendations on current and future markets within the telecoms industry. His primary area of focus is on operator and CSP strategies. He previously worked at GlobalData for four years where he covered the technology and telecommunications industries, and prior to that, worked at Gartner for two years.